Wheeled harrow frame adjustment



July 7, 19.31.

E. M. SMITH" WHEELED HARROW FRAME ADJUSTMENT Original Filed Jan; 19,1928 Patented July 7, 1931 UNITED STATES OFFICE EDWARD M. SMITH, OFPEORIA, ILLINOIS, ASSIGNOB, T LYNCH SCOTT 1C0 OF MONMOUTH, ILLINGIS, ACORPORATION OF ILLINOIS WHEELED risanow FRAME Antrusr aniv'r Originalapplication filed-January 19, 1928, Serial N0."24"7,80'5. Patent No.1,740,841, dated December 2 4,

1929. Divided and this application filed Noveinber 122, 1829. "SerialNo. 409,044.

This is a division of my application Serial No. 247 ,8055, filed January19, 1928.

The invention relates to improvements in wheeled harrows and its objectis to provide simple means of novel construction which can be easily andquickly operated to vary the depth of cut of the disk gangs.

In the accompanying drawings illustrating a selected embodiment of theinvention Fig. 1 is a perspective view of the wheeled harrow frame withthe invention embodied therewith, the disk gangs being omitted;

Fig. 2 is a detail enlarged View of the front end adj Listing means; and

Fig. 3 is a top plan View of the means shown in Fig. 2.

Referring to the drawings 5 designates generally the frame whichcomprises two center bars 6, 6 spread and bent downwardly 13 at thebottom. A draft lever 14 is pivotally mounted 211114 in a suitablemanner between the bars 7 7 and it is provided with a toothed segment15. A worm gear 16 is supported between thebarsand meshes with thesegment gear and is operated by crank 17. The draft lever 14 projectsforward between the two guides 10, 10 and also between the rods 13 and13, and it carries aclevis 18 or other suitable device at its front endfor connecting the harrow to a tractor or other machine. Braces 19, 19are connected to the connection with the tractor and, therefore,

manipulation of the crank 17 will result in causing the draft'lever 14to swing on its axis with the lever as a fulcrum to raise or lower thefront end of the harrow for adjusting the depth of cut of the disks andalso for lifting the disks above the ground for transporting the harrow.The guides sup-port and reinforce the draft lever, especially in turningmovements.

The invention provides means of simple construction which can be easilyand accurately operated for adjusting the frame to regulate the depth ofcut of the disks.

I have shown the invention in a selected embodiment but-I reserve theright to make any changes that may be necessary or desirable to adaptthe invention for different installations, or for other purposes, andwithin the scope of the following claims:

I claim:

1. The combination of a harrow frame, a forwardly extending leverpivotally mounted between its ends at the front of said frame, means atthe front end of said lever for attaching the harrow to a tractor. and agear and a segment for swinging said lever with the tractor connectionas a fulcrum to raise and lower the frame.

2. The combination of a harrow frame, a forwardly extending leverpivotally mounted between its ends at the front of said frame, means atthe front end of said lever for attaching the harrow to a tractor. avertically operating segment at the rear of said lever, and means on theframe engaging said segment for swinging the lever with the tractorconnection as a fulcrum to raise and lower the frame.

8. The combination of a harrow frame, a pair of spaced guides rigidlymounted thereon, a lever pivotally mounted between said guides, anattaching device at the front end of said lever, a toothed segment atthe rear end of said lever, and means for operating said segment toswing said lever for raising and lowering the frame.

4. The combination of a harrow frame, a pair of spaced guides rigidlymounted thereon, a lever pivotally mounted between said guides andbetween its ends. means at the front end of said lever for attaching theharrow to a tractor, a toothed segment at the rear end of said lever,means on the harrow engaging said segment for swinging said lever withthe tractor connection as a fulcrum to raise and lower the frame, androds connecting the guides above and below the lever.

5. Thecombination of a harrow' frame comprising twoforwardly anddownwardly projecting spaced channel bars, a pair of spaced guides, armsprojecting rearward; .c r

from the guides and seatedin the channels a fulcrum to 'of said framebarsgmeans securing 'the arms to the bars, a lever pivotally mounted inthe frame between its ends and between the guides, means at the frontend of saidlever for attaching the harrow to a tractor and means at therear end of said-lever for swinging the lever with the tractorconnection as raise and lower the frame. Y

Y EDWARD M. SMITH.

